Re: [PATCH 4/5] tsc: wire up entropy generation function

On Mon, 13 Jun 2011, Venkatesh Pallipadi wrote:

On Mon, Jun 13, 2011 at 3:06 PM, Jarod Wilson [off-list ref] wrote:

quoted

TSC is high enough resolution that we can use its low-order byte to
stir new data into the random number generator entropy pool.

quoted

From what I vaguely remember from years past, rdtsc, especially last

few bits of it are not very good as random number source. As they are
based on lower bus frequency and a multiplier. May be things have
changed these days. Adding Peter and Suresh for comments.

Recommended reading:

  https://www.osadl.org/fileadmin/dam/rtlws/12/Okech.pdf

Thanks,

	tglx